<template>
  <div>
      <!-- 面包屑导航区域 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
         <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
         <el-breadcrumb-item>商品管理</el-breadcrumb-item>
         <el-breadcrumb-item>商品列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区域 -->
      <el-card>
          <el-row :gutter="20">
              <el-col :span="8">
                  <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                  </el-input>
              </el-col>
              <el-col :span="4">
                  <el-button type="primary" @click="goAddpage">添加商品</el-button>
              </el-col>
          </el-row>
          <!-- table表格区域 -->
          <el-table :data="goodslist" border stripe="">
              <el-table-column label="#" type="index"></el-table-column>
              <el-table-column label="商品名称" prop="goods_name"></el-table-column>
              <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
              <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
              <el-table-column label="创建时间" prop="add_time" width="140px">
                  <template slot-scope="scope">
                      {{scope.row.add_time | dataFormat}}
                  </template>
              </el-table-column>
              <el-table-column label="操作">
                  <template slot-scope="scope" width="130px">
                      <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                      <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                  </template>
              </el-table-column>
          </el-table>
          <!-- 分页区域 -->
          <el-pagination
           @size-change="handleSizeChange"
           @current-change="handleCurrentChange"
           :current-page="queryInfo.pagenum"
           :page-sizes="[5, 10, 15, 20]"
           :page-size="queryInfo.pagesize"
           layout="total, sizes, prev, pager, next, jumper"
           :total="total"
           background>
          </el-pagination>
      </el-card>
  </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', {
                params: this.queryInfo
            })
            if (res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败!')
            }
            this.$message.success('获取商品列表成功!')
            console.log(res.data);
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 根据Id删除对应的商品
        async removeById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
            }).catch(err => err)
            // 如果用户确认删除，则返回值为字符串 confirm
            // 如果用户取消删除，则返回值为字符串 cancel
            // console.log(confirmResult);
            if (confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }
            // console.log('确认了删除');
            const { data: res } = await this.$http.delete(`goods/${id}`)
            if (res.meta.status !== 200) {
                return this.$message.error('删除商品失败!')
            }
            this.$message.success('删除商品成功!')
            this.getGoodsList()
        },
        goAddpage() {
            this.$router.push('goods/add')
        }
    }
}
</script>

<style scoped>

</style>